Illumination – With static structure – Pavement
Patent
1990-10-31
1991-12-10
Lazarus, Ira S.
Illumination
With static structure
Pavement
362286, 362364, 362431, F21V 2122
Patent
active
050723456
ABSTRACT:
A pop-up landscape light has a cylindrical housing adapted for mounting below the surface of the ground in an outdoor environment. A light compartment is mounted for axial extension and retraction through an open top end of the housing to provide selective illumination. In a first embodiment of the present invention, a lead screw mechanism is utilized to extend and retract the light compartment from within the housing. In a second embodiment, a telescopic extensible member is connected to the light compartment and is actuated by winding or unwinding a coil of a flexible material driven by a motor through a bevel gear arrangement. In a third embodiment, a motorized swing arm mechanism is operative to rotate the light compartment through a predetermined angular increment, into and out of the housing, to provide selective illumination.
REFERENCES:
patent: 2420772 (1947-05-01), Dalton
patent: 2838953 (1958-06-01), Cone
patent: 4180850 (1979-12-01), Bivens
patent: 4181268 (1980-01-01), Carolus et al.
patent: 4300186 (1981-11-01), Hurd
patent: 4819143 (1989-04-01), Teichmann
patent: 4841416 (1989-06-01), Doss
patent: 4870543 (1989-09-01), Born et al.
patent: 4974134 (1990-11-01), Bourne
Cole Richard R.
Kearns Jerry T.
Lazarus Ira S.
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